1 // Test that large memset/memcpy/memmove check the entire range. 2 3 // RUN: %clangxx_asan -O0 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ 4 // RUN: FileCheck %s --check-prefix=CHECK-MEMSET 5 // RUN: %clangxx_asan -O1 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ 6 // RUN: FileCheck %s --check-prefix=CHECK-MEMSET 7 // RUN: %clangxx_asan -O2 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ 8 // RUN: FileCheck %s --check-prefix=CHECK-MEMSET 9 // RUN: %clangxx_asan -O3 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \ 10 // RUN: FileCheck %s --check-prefix=CHECK-MEMSET 11 12 // RUN: %clangxx_asan -O0 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ 13 // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY 14 // RUN: %clangxx_asan -O1 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ 15 // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY 16 // RUN: %clangxx_asan -O2 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ 17 // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY 18 // RUN: %clangxx_asan -O3 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \ 19 // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY 20 21 // RUN: %clangxx_asan -O0 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ 22 // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE 23 // RUN: %clangxx_asan -O1 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ 24 // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE 25 // RUN: %clangxx_asan -O2 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ 26 // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE 27 // RUN: %clangxx_asan -O3 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \ 28 // RUN: FileCheck %s --check-prefix=CHECK-MEMMOVE 29 30 // RUN: %clangxx_asan -O2 -DTEST_MEMCPY_SIZE_OVERFLOW %s -o %t && not %run %t 2>&1 | \ 31 // RUN: FileCheck %s --check-prefix=CHECK-MEMCPY_SIZE_OVERFLOW 32 33 #include <assert.h> 34 #include <string.h> 35 #include <stdlib.h> 36 #include <stdio.h> 37 38 #include <sanitizer/asan_interface.h> 39 40 typedef void *(*memcpy_t)(void *, const void *, size_t); 41 42 int main(int argc, char **argv) { 43 char * volatile p = (char *)malloc(3000); 44 __asan_poison_memory_region(p + 512, 16); 45 #if defined(TEST_MEMSET) 46 memset(p, 0, 3000); 47 assert(p[1] == 0); 48 // CHECK-MEMSET: AddressSanitizer: use-after-poison on address 49 // CHECK-MEMSET: in {{.*}}memset 50 #else 51 char * volatile q = (char *)malloc(3000); 52 #if defined(TEST_MEMCPY) 53 memcpy(q, p, 3000); 54 // CHECK-MEMCPY: AddressSanitizer: use-after-poison on address 55 // On Mac, memmove and memcpy are the same. Accept either one. 56 // CHECK-MEMCPY: in {{.*(memmove|memcpy)}} 57 #elif defined(TEST_MEMMOVE) 58 memmove(q, p, 3000); 59 // CHECK-MEMMOVE: AddressSanitizer: use-after-poison on address 60 // CHECK-MEMMOVE: in {{.*(memmove|memcpy)}} 61 #elif defined(TEST_MEMCPY_SIZE_OVERFLOW) 62 volatile memcpy_t my_memcpy = &memcpy; 63 my_memcpy(p, q, -argc); 64 // CHECK-MEMCPY_SIZE_OVERFLOW: AddressSanitizer: negative-size-param: (size=-1) 65 #endif 66 assert(q[1] == 0); 67 free(q); 68 #endif 69 free(p); 70 return 0; 71 } 72
